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.I ti <br /> GSIGeoStrategies, Inc. Log of Boring B-7 <br />. PROJECT BP Or!Station No 11191 LOCATION 1489 East Hammer Lane Stockton, CA <br /> GSI PROJECT NO 4300701 SURFACE ELEVATION <br /> DATE STARTED 2-2-95 WL (ft bgs) DATE TIME <br /> DATE FINISHED 2-2-95 WL (ft bgs) DATE TIME <br /> DRILLING METHOD 8 75"dia hollow-stem auger TOTAL DEPTH 515 Feet <br /> DRILLING COMPANY Geo-Environmental Drilling GEOLOGIST S Carter <br /> w <br /> M <br /> F p in <br /> J Cn <br /> = n N L) GEOLOGIC DESCRIPTION REMARKS <br /> X d a <br /> s J <br /> O X F 4 <br /> C7 .� d m Car) cn (D En <br /> ° Pavement - 4" asphalt, 2"base rock <br /> CL CLAY (CL) - black (10 YR 2/1), damp, medium <br /> plasticity, medium stiff to stiff, 70-80% clay, 20-30% <br /> fine to medium sand, roots <br /> ML <br /> 4 <br /> 0 t5 87-65 SILT (ML) -- dark brown (10 YR 3/3), very stiff, <br /> moist, 90-95% silt,5-10% fine sand, roots <br /> 10 5 <br /> 0 1 <br /> 0 67-115 Color change to dark yellowish brown (10 YR 4/4), <br /> minor oxide staining, roots <br /> �rJ 8 <br /> 0 28 B7-16 5 Becoming hard, light to moderate calcification <br /> 20 11 <br /> 0 19 B7-215 SM SILTY SAND (SM)- dark yellowish brown (10 YR <br /> 28 4/8), dense, moist, 60-70% fine sand, 30-40% silt, <br /> minor oxide stains <br /> 25 11 <br /> 045 B7-26 5 As above <br /> SP <br /> Driller notes hard drilling at 28 to 28 5 feet <br /> 30 <br /> p 0/5 , B7-31 SAND (SP) - grayish brown (10 YR 5/2), very dense, <br /> damp, 95-100% fine sand, trace to 5% silt <br /> SM <br /> 35 <br /> JOB NUMBER 4300 701 Page 1 of 2 <br />